NTA (Nitrilotriacetic Acid) Analysis

Nitrilotriacetic acid (NTA) is a type of aminotricarboxylic acid. It consists of prismatic crystals in the form of undissociated acid. It has a melting point of 241.5 degrees, its water solubility at 22.5 degrees is 1.28 mg/mL, and the pH value of the saturated solution is 2.3.

Nitrilotriacetic acid (NTA) cleaves metal ions to form water-soluble complexes. It is an important chelating agent in many industrial applications, meaning it combines a chemical compound with a metal to form a metal complex. Phosphate use in laundry detergents is restricted in some countries, as it causes an overgrowth of plankton and algae in lakes. Instead, trisodium salt is used as a builder with its ability to chelate calcium and magnesium ions.

Nitrilotriacetic acid (NTA), on the other hand, is also widely used in the treatment of boiler water to prevent mineral deposits. It is used in photography, textile production, paper and cellulose production, metal coating and cleaning processes to a lesser extent. Because nitrilotriacetic acid has a synergistic effect on the mobilization of iron with desferrioxamine, it is recommended as a therapeutic chelating agent for manganese poisoning and for the treatment of iron overload.

Nitrilotriacetic acid (NTA) is found in the environment primarily as a result of its release into sewers. It is readily biodegradable and degrades under certain conditions by photochemical and chemical reactions. It is mainly decomposed by microorganisms by carbon-nitrogen splitting with the formation of intermediates such as ammonia, metabolic end products are carbon dioxide, water, ammonia and nitrate. The rate of biodegradation is greatly affected by the acclimatization of microorganisms, temperature, dissolved oxygen concentration in water, NTA concentration and water hardness. Most NTA-metal complexes degrade rapidly.

Nitrilotriacetic acid (NTA) is found in drinking water in the form of metal complexes rather than free acid. NTA analysis requires specialized and non-routine methods and is not easy to monitor regularly in drinking water sources. NTA concentrations in water are determined by gas chromatographic separation with a nitrogen-specific detector. There are also polarography, colorimetry and gas chromatography methods with flame ionization detection for the detection of NTA in water.

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